# Unable to connect one elasticsearch master pod to another pod to setup two node cluster **URL:** \ **Category:** Elasticsearch\ **Created:** [October 12, 2023, 12:26pm UTC](https://discuss.elastic.co/t/unable-to-connect-one-elasticsearch-master-pod-to-another-pod-to-setup-two-node-cluster/344915 "2023-10-12T12:26:55Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Santhosh\_Sekar](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/santhosh_sekar/32/126488_2.png) [@Santhosh\_Sekar](https://discuss.elastic.co/u/Santhosh_Sekar)\ **Post date:** [October 12, 2023, 12:26pm UTC](https://discuss.elastic.co/t/unable-to-connect-one-elasticsearch-master-pod-to-another-pod-to-setup-two-node-cluster/344915/1 "2023-10-12T12:26:55Z")
Hello Team, I am trying to setup two node es cluster in k8s. Issue that i am facing is that es-1 could not elect that as master and could not connect to another pod es-2.yml file ```auto cluster.name: "elastic.cluster" network.host: _site_ #http.host: 0.0.0.0 node.name: "es-2-0" node.master: false node.data: true node.ingest: false discovery.seed_hosts: ["es-2-0","es-clusterip-svc-1.bat-aws-namespace-1.svc.cluster.local"] cluster.initial_master_nodes: ["es-clusterip-svc-1.bat-aws-namespace-1.svc.cluster.local"] #transport.host: 0.0.0.0 #network.bind_host: 0.0.0.0 #network.publish_host: es-clusterip-svc-2.bat-aws-namespace-1.svc.cluster.local path.data: /usr/share/elasticsearch/data bootstrap.memory_lock: true #node.roles: master xpack.license.self_generated.type: basic #Enable xpack.security which is provided in basic subscription xpack.security.enabled: true #Disable unused xpack features xpack.monitoring.enabled: true xpack.graph.enabled: true xpack.watcher.enabled: true xpack.ml.enabled: true logger.org.elasticsearch.cluster.coordination.ClusterBootstrapService: TRACE logger.org.elasticsearch.discovery: TRACE ``` es-1.yml file ````auto cluster.name: "elastic.cluster" network.host: _site_ #http.host: 0.0.0.0 node.name: "es-1-0" node.master: true node.data: false node.ingest: false discovery.seed_hosts: ["es-1-0","es-clusterip-svc-2.bat-aws-namespace-1.svc.cluster.local"] cluster.initial_master_nodes: ["es-1-0","es-clusterip-svc-2.bat-aws-namespace-1.svc.cluster.local"] #transport.host: 0.0.0.0 #network.bind_host: 0.0.0.0 #network.publish_host: es-clusterip-svc-1.bat-aws-namespace-1.svc.cluster.local path.data: /usr/share/elasticsearch/data bootstrap.memory_lock: true #node.roles: master xpack.license.self_generated.type: basic #Enable xpack.security which is provided in basic subscription xpack.security.enabled: true #Disable unused xpack features xpack.monitoring.enabled: true xpack.graph.enabled: true xpack.watcher.enabled: true xpack.ml.enabled: true logger.org.elasticsearch.cluster.coordination.ClusterBootstrapService: TRACE logger.org.elasticsearch.discovery: TRACE``` I am getting below error as ```` de.name": "es-1-0", "message": "initialized" } {"type": "server", "timestamp": "2023-10-12T12:21:28,286Z", "level": "INFO", "component": "o.e.n.Node", "cluster.name": "elastic.cluster", "node.name": "es-1-0", "message": "starting ..." } {"type": "server", "timestamp": "2023-10-12T12:21:28,729Z", "level": "INFO", "component": "o.e.t.TransportService", "cluster.name": "elastic.cluster", "node.name": "es-1-0", "message": "publish\_address {10.42.0.99:9300}, bound\_addresses {10.42.0.99:9300}" } {"type": "server", "timestamp": "2023-10-12T12:21:29,260Z", "level": "INFO", "component": "o.e.b.BootstrapChecks", "cluster.name": "elastic.cluster", "node.name": "es-1-0", "message": "bound or publishing to a non-loopback address, enforcing bootstrap checks" } ERROR: [2] bootstrap checks failed [1]: memory locking requested for elasticsearch process but memory is not locked [2]: max virtual memory areas vm.max\_map\_count [65530] is too low, increase to at least [262144] ERROR: Elasticsearch did not exit normally - check the logs at /usr/share/elasticsearch/logs/elastic.cluster.log ```auto But when i change network.host: 127.0.0.1 bootstrap setting is getting passed but es-1 is not getting connected with es-2. i have learned some setting of transport.host and http.host but could not resolve this issue. If anyone have suggestion please let me know. Thanks in advance ``` ---
**Author:** ![leandrojmp](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/leandrojmp/32/107231_2.png) [@leandrojmp](https://discuss.elastic.co/u/leandrojmp)\ **Post date:** [October 12, 2023, 12:50pm UTC](https://discuss.elastic.co/t/unable-to-connect-one-elasticsearch-master-pod-to-another-pod-to-setup-two-node-cluster/344915/2 "2023-10-12T12:50:30Z")
> [@Santhosh\_Sekar](#): > > [2]: max virtual memory areas vm.max\_map\_count [65530] is too low, increase to at least [262144] You need to fix this before, I do not use k8s, but here is some [documentation](https://www.elastic.co/guide/en/cloud-on-k8s/current/k8s-virtual-memory.html#k8s-virtual-memory) on how to fix that on ECK, you may need to adapt to your infrastructure if you are not using ECK. > [@Santhosh\_Sekar](#): > > But when i change network.host: 127.0.0.1 bootstrap setting is getting passed This is expected, the bootstrap checks are triggered when you set `network.host` to something different from `127.0.0.1`, which means you are going to production. ---
**Author:** ![Santhosh\_Sekar](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/santhosh_sekar/32/126488_2.png) [@Santhosh\_Sekar](https://discuss.elastic.co/u/Santhosh_Sekar)\ **Post date:** [October 12, 2023, 2:23pm UTC](https://discuss.elastic.co/t/unable-to-connect-one-elasticsearch-master-pod-to-another-pod-to-setup-two-node-cluster/344915/3 "2023-10-12T14:23:18Z")
Hi, max virtual memory areas vm.max\_map\_count [65530] is too low, increase to at least [262144] i have commands in post start to increase vm.max\_map\_count value. If container successfully stated those values would be set. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [November 9, 2023, 2:23pm UTC](https://discuss.elastic.co/t/unable-to-connect-one-elasticsearch-master-pod-to-another-pod-to-setup-two-node-cluster/344915/4 "2023-11-09T14:23:35Z")
This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.